[WriteLog] Ground loop isolator
Randy Thompson, K5ZD
k5zd@ma.ultranet.com
2000年2月10日 23:22:28 -0000
Those of you who connect your sound card to the radio for AFSK or SSB have
probably run into hum or ground loop problems. I had solved this problem
using a little homebrew box consisting of some connectors and audio
isolation transformers.
For those of you who are electrically challenged, Radio Shack has a product
that does exactly what you need. Called a Ground Loop Isolator (Cat. No.
270-054), it can be found in the car audio section of the store. It has two
audio connections terminated with RCA plugs on each end. Cost was about
15ドル.
With two connections, you can use it for isolation to two radios. Or use
one for transmit audio and one for receive.
Randy, K5ZD
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